[jdk17u-dev] RFR: 8358764: (sc) SocketChannel.close when thread blocked in read causes connection to be reset (win) [v2]

[Goetz Lindenmaier]

> I backport this for parity with 17.0.18-oracle.
> 
> Needed resolve and adaptions:
> 
> Net.java:  resolved static initializer.
> SocketChannelImpl.java: In implCloseBlockingMode(), the code guarded by the new condition is not in 17. Omitted.
> Net.c: Copyright.
> 
> The test exercises platform and virtual threads.
> I simplified this to what is supported in 17.
> See extra commit.

Goetz Lindenmaier has updated the pull request incrementally with one additional commit since the last revision:

  add code from 8284161 along with fix of this change

-------------

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/4076/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/4076/files/d57767e8..bdb4707e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4076&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4076&range=00-01

  Stats: 12 lines in 1 file changed: 12 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/4076.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/4076/head:pull/4076

PR: https://git.openjdk.org/jdk17u-dev/pull/4076